U.S. patent number 6,850,827 [Application Number 10/653,600] was granted by the patent office on 2005-02-01 for rearward viewing system for use with vehicles.
Invention is credited to Glenn H. Morris, Sr..
United States Patent |
6,850,827 |
Morris, Sr. |
February 1, 2005 |
Rearward viewing system for use with vehicles
Abstract
A rearward viewing system having at least one mirror mounted by
a bracket to an exterior portion of a vehicle. The bracket locates
the mirror above the roof and forward of at least a portion of the
windshield. A camera is directed toward the front of the vehicle at
the mirror so that the mirror can provide a range of view of at
least 60.degree. and preferably more than 90.degree. so that the
normal blind spots of a driver are eliminated. A monitor receiving
input from the camera provides a display for the driver.
Inventors: |
Morris, Sr.; Glenn H.
(Chattanooga, TN) |
Family
ID: |
34080771 |
Appl.
No.: |
10/653,600 |
Filed: |
September 2, 2003 |
Current U.S.
Class: |
701/49; 340/937;
348/148; 701/301 |
Current CPC
Class: |
B60R
1/10 (20130101) |
Current International
Class: |
B60R
1/10 (20060101); B60R 1/00 (20060101); H06F
017/00 () |
Field of
Search: |
;701/1,36,49,300,301
;340/436,461,903,937 ;345/7 ;348/42,51,148,149 ;382/154 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Camby; Richard M.
Attorney, Agent or Firm: Stark; Stephen J. Miller &
Martin PLLC
Claims
Having thus set forth the nature of the invention, what is claimed
herein is:
1. A rearwardly viewing system for use with vehicles comprising: a
vehicle having an exterior surface and supported by four wheels,
said vehicle having a front end, a front windshield, a roof, and a
centerline extending intermediate the four wheels; a mirror located
external to the exterior surface of the vehicle and forward of at
least a portion of the front windshield, said mirror connected to
the vehicle by a bracket so that the mirror is located above the
roof of the vehicle; a camera directed toward the front end of the
vehicle at the mirror; and a monitor visible to a driver of the
vehicle, said monitor receiving an input from the camera and
providing a display to the driver.
2. The rearwardly viewing system of claim 1 wherein the mirror is
located along the centerline of the vehicle.
3. The rearwardly viewing system of claim 1 further comprising a
mount connected to one of the front windshield and roof, said mount
supporting the mirror above the roof.
4. The rearwardly viewing system of claim 3 wherein the bracket
extends toward the front end of the vehicle thereby supporting the
mirror forward of the mount.
5. The rearwardly viewing system of claim 4 wherein the bracket
further comprises a first leg extending toward the front end of the
vehicle from the mount and a second leg extending upwardly, said
second leg connected to the mirror.
6. The rearwardly viewing system of claim 5 wherein the second leg
of the bracket extends at least partially away from the front end
of the vehcile.
7. The rearwardly viewing system of claim 4 wherein the bracket is
connected to the mount at a first rotationally adjustable
connection.
8. The rearwardly viewing system of claim 4 wherein the bracket is
connected to the mirror at a second rotationally adjustable
connection.
9. A rearwardly viewing system comprising: a vehicle having an
exterior surface and supported by four wheels, said vehicle having
a front end and a back end, a front windshield, a roof, and a
centerline extending intermediate the four wheels; a convex mirror
connected to a mount on the roof of the vehicle whereby the mirror
is supported above the roof of the vehicle and pointed toward the
back end of the vehicle; a camera directed toward the front end of
the vehicle at the mirror; and a monitor visible to a driver of the
vehicle, said monitor receiving an input from the camera and
providing a display to the driver.
10. The rearwardly viewing system of claim 9 wherein the camera is
sufficient spaced from the mirror to provide at least a ninety
degree range of view on the monitor.
11. The rearwardly viewing system of claim 10 wherein the range of
view is centered about the centerline of the vehicle.
12. The rearwardly viewing system of claim 9 wherein the camera is
mounted external to the vehicle.
13. The rearwardly viewing system of claim 9 wherein the camera is
connected by a flexible coupling to the vehicle.
14. The rearwardly viewing system of claim 9 wherein the bracket
further comprises a first leg oriented toward the back end of the
vehicle.
15. The rearwardly viewing system of claim 14 wherein the bracket
further comprises a second leg oriented toward the front end of the
vehicle, said second leg extending further toward the front end of
the vehicle than the first leg extends toward the back end of the
vehicle.
16. A rearwardly viewing system comprising: a vehicle having an
exterior surface and supported by four wheels, said vehicle having
a front end and a back end, a front windshield, a roof, and a
centerline extending intermediate the four wheels; at least one
mirror connected to a mount whereby the at least one mirror is
supported above the roof of the vehicle; a camera directed toward
the front end of the vehicle at the at least one mirror; and a
monitor visible to a driver of the vehicle, said monitor receiving
an input from the camera and providing a display to the driver
having a range of view extending at least sixty degrees at least
substantially centered about the centerline of the vehicle.
17. The rearwardly viewing system of claim 16 wherein the camera is
connected by a flexible coupling to the mount.
18. The rearwardly viewing system of claim 16 further comprising a
bracket extending from the mount toward the front end of the
vehicle thereby locating the mirror forward of the mount.
19. The rearwardly viewing system of claim 18 wherein the at least
one mirror is angularly positionable relative to the bracket about
an axis perpendicular to the centerline of the vehicle.
20. The rearwardly viewing system of claim 19 wherein the bracket
is angularly positionable relative to the mount about an axis
perpendicular to the centerline of the vehicle.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an apparatus useful with vehicles for
viewing objects which are normally difficult for a driver to see
such as those which would otherwise be in a "blindspot."
2. Prior Art
Numerous efforts have been undertaken to assist a driver of a
vehicle in reducing blindspots. U.S. Pat. No. 6,567,726 shows a
vehicle driving support system which includes a camera unit mounted
to a rear portion of a vehicle aimed rearwardly therebehind. A
display of images taken by the camera is located on an information
display visible by the driver. This system is apparently utilized
to assist in parking.
Although improvements have been made to rearward viewing systems, a
need still exists to provide an improvement for visualizing blind
spots on both sides of the vehicle as well as behind the vehicle,
particularly for highway driving conditions.
SUMMARY OF THE INVENTION
A need exists for a reliable rearview imaging system to detect
objects which may otherwise be in blindspots or which are otherwise
difficult to view by a driver.
A need exists for a rearview imaging system capable of visualizing
areas on either side of a vehicle as well as behind the vehicle
simultaneously.
Another need exists to advantageously provide an image of areas
which are normally in the blind spots including the sides of the
vehicle as well as behind the vehicle to a video display visible by
the driver.
Accordingly, the rearview system of the presently preferred
embodiment of the invention has at least one mirror mounted by a
bracket to an exterior portion of the vehicle. The bracket
preferably positions the mirror so that it is out of the normal
field of vision of the driver, but positioned so that it can
advantageously provide rearward as well side looking views which
are normally the driver's blind spot, or at least areas difficult
for the driver to view with traditional side mirrors and rearview
mirrors. A camera is positioned relative to the mirror so that a
video display may be provided to the driver.
The mirror is preferably mounted along a centerline of a vehicle
and above a roof of the vehicle. This positioning assists in
viewing areas which would otherwise be obscured from view. The
mountings are preferably flexible so that if a driver inadvertently
runs under too low of an object, the mirror and camera deflect
instead of breaking. The mirror also preferably has a convex
surface to provide a wide-angle view so that objects on either side
as well as behind the vehicle may be viewed by a single camera and
single mirror.
BRIEF DESCRIPTION OF THE DRAWINGS
The particular features and advantages of the invention as well as
other objects will become apparent from the following description
taken in connection with the accompanying drawings in which:
FIG. 1 is a side view of the vehicle equipped with the presently
preferred embodiment of the present invention;
FIG. 2 is an exploded view of the rear view mirror and camera shown
in FIG. 1;
FIG. 3 is a top plan view of a vehicle equipped with the preferred
embodiment of the present invention in operation; and
FIG. 4 is a perspective view of a display inside the cab of the
vehicle using the preferred embodiment of the present
invention.
DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a vehicle 10 having a rearview system 12 in accordance
with the presently preferred embodiment of the present invention.
The rearview system 12 is illustrated mounted along the center line
14 of the vehicle 10 in FIGS. 2 and 3.
The system 10 is preferably mounted to the hood 16 of the vehicle
10 or at least to a structural member located above the front
windshield 18 as shown in FIG. 2. As shown in FIG. 2, the rearview
system 12 is comprised of a camera 20 connected by a flexible arm
22 to a mount 24. Also connected to the mount 24 is a bracket 26
which connects to mirror 28.
The bracket 26, in addition to having a forwardly extending
component illustrated by leg 30 which extends from a mount 24
towards the front 32 of the vehicle, further comprises a second leg
34 which extends upwardly, and preferably slightly rearwardly. This
structure provides the second leg 34 at an angle to the first leg
30 such that if it were to contact a foreign object such as a tree
branch or other low hanging object, the bracket 26 and thus the
mirror 28 would tend to be deflected downwardly so that the mirror
28 and bracket 26 would probably not be damaged.
In the event of such an accident, the flexible coupling 22
connecting the camera 20 to the mount 24 is also designed to give,
at least to some degree, to protect the vehicle 14 as well as the
camera 20 and windshield 18.
The mirror 28 is illustrated connected to the second arm 34 at a
pivotable connection 36. Furthermore, the first arm 30 of the
bracket 26 is connected to the mount 24 at a pivotable connection
38 so that the elevation of the mirror along with its tilt may be
set with connectors 40,42. The connectors 40,42 are useful in
setting and/or at least temporarily fixing the angular positions at
the connections 36,38.
As can be seen in FIG. 2, the reflective surface 44 of the mirror
28 is convex. As shown in FIGS. 1 and 3 the range of view provided
by the mirror can be significantly greater by use of the concavity
to allow the driver to see blind spots adjacent to and/or beside
the vehicle 10 as well as other vehicles behind the car.
The camera 28 is preferably connected by at least one conductor to
the display 48 which is in a monitor 50 viewable by the driver. The
driver can now see objects which might otherwise have been in the
driver's blind spots.
In FIG. 3, the field of vision viewed by system 10 covers a span of
about 100.degree. centered along the center line 14 of the car.
Specifically, the right most limit is illustrated by arrow 50 which
puts first vehicle 52 in the range of view to the driver (not
shown). Additionally, a second vehicle 54 may also be in the range
of view along the center line 14 of the vehicle. Finally, the third
vehicle 56 is in the range of view as the left most range of view
as illustrated by left arrow 58.
The range between the right most range of view 50 and left most
range of view 58 corresponds to the total range of view provided to
the driver. This range is preferably on the order of varying about
90.degree., and is illustrated as about 100.degree.. In
alternatively preferred embodiment the range of view is at least
50.degree., and more preferably 60.degree., preferably still
80.degree. or greater. Obviously the range of view need not to
extend to 180.degree. since the mirror is located ahead of the
driver. The driver would be able to see any such vehicle reported
along that range out of the left and right windows.
Numerous alterations of the structure herein disclosed will suggest
themselves to those skilled in the art. However, it is to be
understood that the present disclosure relates to the preferred
embodiment of the invention which is for purposes of illustration
only and not to be construed as a limitation of the invention. All
such modifications which do not depart from the spirit of the
invention are intended to be included within the scope of the
appended claims.
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